Modified adaptive image filtering and enhancement method for speckle pattern based on visual characteristics

Yibing Yang; Zhenya He

doi:10.1117/12.167446

1 February 1994 Modified adaptive image filtering and enhancement method for speckle pattern based on visual characteristics

Yibing Yang, Zhenya He

Author Affiliations +

Proceedings Volume 2083, Microscopy, Holography, and Interferometry in Biomedicine; (1994) https://doi.org/10.1117/12.167446
Event: Europto Biomedical Optics '93, 1993, Budapest, Hungary

Abstract

A modified adaptive image filtering and enhancement method for speckle pattern based on human visual characteristics is described in this paper. Because there are various noises in speckle pattern, especially signal-dependent noise such as speckle noise, it is very difficult to directly and accurately extract useful information from it. In the light of this case, a local variable-direction non-linear adaptive image filtering method that can simultaneously remove various noises in speckle pattern is presented here, in which, the characteristics of linear local minimum mean square error filter and some non-linear filters are combined, and the local fringe direction and neighborhood statistics are considered. Experimental results show that the proposed filtering and enhancement method are effective for speckle pattern and it is easy to implement, the loss of useful information is very small as well.

Citation Download Citation

Yibing Yang and Zhenya He "Modified adaptive image filtering and enhancement method for speckle pattern based on visual characteristics", Proc. SPIE 2083, Microscopy, Holography, and Interferometry in Biomedicine, (1 February 1994); https://doi.org/10.1117/12.167446

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